Summary of Significant Accounting Policies - Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)
Medical Indication Information
Total net sales	$ 144,372	$ 172,794	$ 407,824	$ 521,566
Number of reportable segments | segment			1
Analgesic
Medical Indication Information
Total net sales	2,811	946	$ 6,806	5,322
Anti-Psychosis
Medical Indication Information
Total net sales	27,858	20,616	78,588	45,541
Cardiovascular
Medical Indication Information
Total net sales	21,746	22,783	67,325	70,233
Central Nervous System
Medical Indication Information
Total net sales	18,566	15,906	57,154	37,565
Endocrinology
Medical Indication Information
Total net sales		55,210		197,565
Gastrointestinal
Medical Indication Information
Total net sales	20,745	16,501	56,020	47,038
Infectious Disease
Medical Indication Information
Total net sales	21,749	4,162	51,722	13,258
Migraine
Medical Indication Information
Total net sales	12,886	9,846	32,907	32,134
Respiratory/Allergy/Cough/Cold
Medical Indication Information
Total net sales	2,966	2,549	8,747	9,521
Urinary
Medical Indication Information
Total net sales	1,149	2,096	2,817	5,233
Other
Medical Indication Information
Total net sales	8,051	14,247	27,847	37,658
Contract manufacturing revenue
Medical Indication Information
Total net sales	$ 5,845	$ 7,932	$ 17,891	$ 20,498